ddidderr
22ec52d5ec
Build a configuration-matched Cargo static library during CMake builds and join its object members into the generated static libzstd archive. A single flattened archive avoids C-to-Rust and Rust-to-C archive-order failures for external consumers. Shared builds whole-archive the Cargo output so Rust-only public ABI exports remain visible. The configuration also follows partial compression and decompression builds, forced HUF modes, and supported 32-bit Linux targets. Dedicated CTest smoke consumers cover both linkage forms. Test Plan: - configure and build fresh static and shared CMake smoke targets - ctest -R 'rustLibSmoke(Static|Shared)' --output-on-failure - cargo clippy, cargo clippy --benches, cargo clippy --tests, and nightly fmt - validate partial, forced-HUF, i686, install, and incremental build paths Refs: build/cmake/lib/merge_rust_archive.cmake
83 lines
3.3 KiB
CMake
83 lines
3.3 KiB
CMake
# ################################################################
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# Copyright (c) Meta Platforms, Inc. and affiliates.
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# All rights reserved.
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#
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# This source code is licensed under both the BSD-style license (found in the
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# LICENSE file in the root directory of this source tree) and the GPLv2 (found
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# in the COPYING file in the root directory of this source tree).
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# ################################################################
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# Merge the Cargo static library into CMake's libzstd static archive. Keeping
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# the object members in one archive matters: C objects call migrated Rust
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# functions and Rust objects call C helpers, so two separate archives are
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# sensitive to the consumer linker's archive scan order.
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foreach(_zstd_required ARCHIVER RUST_ARCHIVE TARGET_ARCHIVE WORK_DIR)
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if(NOT DEFINED ${_zstd_required})
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message(FATAL_ERROR "${_zstd_required} is required")
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endif()
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endforeach()
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file(REMOVE_RECURSE "${WORK_DIR}")
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file(MAKE_DIRECTORY "${WORK_DIR}")
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if(ARCHIVER_STYLE STREQUAL "MSVC")
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# lib.exe accepts libraries as inputs and writes their object members to a
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# new archive. Keep the original C archive separate while it is read,
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# because /OUT must not overwrite an input archive.
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set(_zstd_c_archive "${WORK_DIR}/libzstd-c.lib")
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execute_process(
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COMMAND "${CMAKE_COMMAND}" -E copy "${TARGET_ARCHIVE}" "${_zstd_c_archive}"
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RESULT_VARIABLE _zstd_copy_result)
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if(NOT _zstd_copy_result EQUAL 0)
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message(FATAL_ERROR "could not copy ${TARGET_ARCHIVE} for Rust archive merge")
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endif()
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execute_process(
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COMMAND "${ARCHIVER}" "/OUT:${TARGET_ARCHIVE}" "${_zstd_c_archive}" "${RUST_ARCHIVE}"
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RESULT_VARIABLE _zstd_merge_result
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OUTPUT_VARIABLE _zstd_merge_output
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ERROR_VARIABLE _zstd_merge_error)
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else()
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execute_process(
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COMMAND "${ARCHIVER}" x "${RUST_ARCHIVE}"
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WORKING_DIRECTORY "${WORK_DIR}"
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RESULT_VARIABLE _zstd_extract_result
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OUTPUT_VARIABLE _zstd_extract_output
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ERROR_VARIABLE _zstd_extract_error)
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if(NOT _zstd_extract_result EQUAL 0)
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message(FATAL_ERROR
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"could not extract Rust archive ${RUST_ARCHIVE}: ${_zstd_extract_output}${_zstd_extract_error}")
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endif()
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file(GLOB _zstd_rust_objects "${WORK_DIR}/*.o" "${WORK_DIR}/*.obj")
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if(NOT _zstd_rust_objects)
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message(FATAL_ERROR "Rust archive ${RUST_ARCHIVE} did not contain object files")
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endif()
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execute_process(
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COMMAND "${ARCHIVER}" q "${TARGET_ARCHIVE}" ${_zstd_rust_objects}
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RESULT_VARIABLE _zstd_merge_result
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OUTPUT_VARIABLE _zstd_merge_output
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ERROR_VARIABLE _zstd_merge_error)
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endif()
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if(NOT _zstd_merge_result EQUAL 0)
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message(FATAL_ERROR
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"could not merge Rust archive ${RUST_ARCHIVE}: ${_zstd_merge_output}${_zstd_merge_error}")
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endif()
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if(DEFINED RANLIB AND NOT "${RANLIB}" STREQUAL "" AND NOT ARCHIVER_STYLE STREQUAL "MSVC")
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execute_process(
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COMMAND "${RANLIB}" "${TARGET_ARCHIVE}"
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RESULT_VARIABLE _zstd_ranlib_result
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OUTPUT_VARIABLE _zstd_ranlib_output
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ERROR_VARIABLE _zstd_ranlib_error)
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if(NOT _zstd_ranlib_result EQUAL 0)
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message(FATAL_ERROR
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"could not index ${TARGET_ARCHIVE}: ${_zstd_ranlib_output}${_zstd_ranlib_error}")
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endif()
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endif()
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file(REMOVE_RECURSE "${WORK_DIR}")
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